<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>

<script type="text/javascript">
	
// var re = Math.abs(-6);
// var re = Math.round(6.49);
// var re = Math.floor(5.02);
// var re = Math.ceil(5.02);

// 取10-15之间随机数
// var re = Math.random()*(15-10)+10;
// var re = Math.random()*(67-52)+52;

取0-10之间的随机整数
var re = Math.floor(Math.random()*11);

document.write(re);

</script>
</head>

<body>
</body>
</html>
